Hi i am probably in the wrong placeso i probably wont be able to get back to this page as i have been to lots of pages over the weeks any way if you can help please i bought a new computer and downloaded Riva tuner not realising what it did it obviously overclocked and i have no display (Nvidia GT 220 Graphics card ) i am now running on onboard Graphics motherboard is Biostar GF 8100 M2G+ i was told clear CMOS i have moved jumpers from 1-2 to 2-3 and back to 1-2 about 30 times with power cord disconnected, i have held down INSERT while pressing start 20 times i have re-installed windows Vista 3 times in the bios is still the warning CLEAR CMOS IF THIS HAS BEEN OVERCLOCKED,??? I AM AT MY WITTS END, i am a pensioner and i dont do overclocking i just want to get it back to normal any help will be "GREATLY" appreciated many thanks Colin. my email is ..........colin.green57@ntlworld.com